Copyright © 2020 by the American Society of Nephrology.Trypanosomatid parasites are causative agents of important human and animal diseases such as sleeping sickness and leishmaniasis. Most trypanosomatids are transmitted to their mammalian hosts by insects, often belonging to Diptera (or true flies). With resistance to both vector-targeted pesticides and trypanocidal drugs being reported, there is a need for novel transmission blocking strategies to be developed. Studies using the blood-feeding vectors themselves are not broadly accessible, as such, new model systems are being developed to unpick insect-trypanosmatids interactions. One such case is the interactions between the model dipteran Drosophila melanogaster and its natural trypanosomatid Herpetomonas muscarum Our previous work has found that much of the transcriptomic changes triggered in H. muscarum after ingestion by Drosophila reflect what is known for disease-causing trypanosomatids. Here we describe a set of tools to genetically manipulate the parasite and therefore create a truly tractable insect-parasite interaction system from both sides of this association. These include transgenic fluorescently tagged parasites to follow infection dynamics in the fly gut as well as iterations of plasmids that can be used for generating knock-in and knock-out strains. The tools presented in this short report will facilitate further characterisation of trypanosomatid establishment in a model dipteran. Copyright © The Author(s) 2020. Published by the Genetics Society of America.Epitopes derived from mutated cancer proteins elicit strong antitumor T-cell responses that correlate with clinical efficacy in a proportion of patients. However, it remains unclear whether the subcellular localization of mutated proteins influences the efficiency of T-cell priming. To address this question we compared the immunogenicity of NY-ESO-1 and OVA localized either in the cytosol or in mitochondria. We showed that tumors expressing mitochondrial-localized NY-ESO-1 and OVA proteins elicit significantly higher frequencies of antigen-specific CD8+ T cells in vivo. We also demonstrated that this stronger immune response is dependent on the mitochondrial location of the antigenic proteins, which contributes to their higher steady state amount, compared with cytosolic-localized proteins. Consistent with these findings, we showed that injection of mitochondria purified from B16 melanoma cells can protect mice from a challenge with B16 cells, but not with irrelevant tumors. Finally, we extended these findings to cancer patients by demonstrating the presence of T-cell responses specific for mutated mitochondrial-localized proteins. These findings highlight the utility of prioritizing epitopes derived from mitochondrial-localized mutated proteins as targets for cancer vaccination strategies. Copyright ©2020, American Association for Cancer Research.OBJECTIVE To describe the intervention spectrum, complexity, and safety outcomes of catheter-based interventions in a contemporary adult congenital heart disease (ACHD) tertiary cohort. METHODS All patients over 16?years who underwent a catheter-based intervention for ACHD in our centre between 2000 and 2016 were included. Baseline demographics, clinical characteristics, indications for and complexity of intervention, procedural complications and early and mid-term mortality were analysed. RESULTS Overall, 1644 catheter-based interventions were performed. Intervention complexity ranged from simple (67.5%) to intermediate (26.4%) and to high (6.1%). Commonly performed procedures were atrial septal defect (33.4%) and patent foramen ovale closure (26.1%) followed by coarctation of the aorta (11.1%) and pulmonary artery interventions (7.0%). Age at index intervention was 40±16 years, 758 (46.1%) patients were male, 73.2% in New?York Heart Association (NYHA) class I, 20.2% in NYHA class II, whereas 6.6% in NYHA class III/IV. In-hospital mortality was 0.7%. Median postinterventional length of stay was 1?day. Complications occurred in 129 (7.9%) with major adverse events in 21 (1.3%). One-year postintervention survival rates were 98.7% (95% CI 98.2 to 99.2). Over the study period, there was a notable shift in intervention complexity, with a predominance of simple procedures performed in early years and more complex procedures in later years. Furthermore, the case mix during the study broadened (p less then 0.001) with new catheter-based interventions and a more individualised approach to therapy. CONCLUSION This study shows an increasing complexity and expanding variability of ACHD catheter-based interventions, associated with low major complications, short hospital stays and low early and mid-term mortality. Ongoing investment in ACHD catheter interventions is warranted. © Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ.We used whole exome sequencing (WES) to determine the genetic etiology of a patient with a multi-system disorder characterized by a seizure phenotype. WES identified a heterozygous de novo missense mutation in the GABRA1 gene (c.875C&gt;T). GABRA1 encodes the alpha subunit of the Gamma-Aminobutyric Acid receptor A (GABAAR). The GABAAR is a ligand gated ion channel that mediates the fast inhibitory signals of the nervous system and mutations in the sub-units that compose the GABAAR have been previously associated with human disease. To understand the mechanisms by which GABRA1 regulates brain development, we developed a zebrafish model of gabra1 deficiency. gabra1 expression is restricted to the nervous system and behavioral analysis of morpholino injected larvae suggests that the knockdown of gabra1 results in hypoactivity and defects in the expression of other sub-units of the GABAAR. https://www.selleckchem.com/products/ms-275.html Expression the human GABRA1 protein in morphants partially restored the hypomotility phenotype. In contrast, the expression of the c.875C&gt;T variant did not restore these behavioral deficits. Collectively, these results represent a functional approach to understand the mechanisms by which loss of function alleles cause disease. © 2020. Published by The Company of Biologists Ltd.